USA "crushing" Japan?

I think that a US invasion of Japan itself is nearly impossible. The problem that I see with Japan is its monster income: even if it has lost every single Pacific island, it will still have nearly 30 IPCs per turn. I think that for the first few turns, the US should focus chiefly in Europe, since Japan has a huge advantage in the ocean campaign. The only major IPC spending that the US should do here is keeping a large enough navy to protect Hawaii. Building an IC in Alaska might work, but only if you can hold it.

A better strategy is to starve Japan of income, so that even if Japan can muster a huge defense in Japan/sz6, you (alongside with the UK and ANZAC) can build a large force to attack every turn, while Japan cannot replace its losses.

As mentioned it isn’t difficult to starve the Japanese with convoy/sub every turn.  The Japanese have to build destroyer(s) counter sucking up valuable IPCs.  The US can start build 52 worth of subs until turn 3.  Once it hits 72+, game over.  The Japanese cannot hold high IPC islands, control the Chinese, take India and prevent an ANZAC build up.  If Russia attacks even a little forget it.  The Mongolian pact is not that important or much of a deterrent for either side.  There needs to be some lessening of the American IPCs pre-war.  52 is too much.

Agree…52 to 80 IPCs, buys a lot of navy.  Japan cannot keep up.

“100% Pacific. Not 80, not 90”

That’s the optimal approach.  There may be some reason for you to buy or place a few units on the KGF side, some games for me its the occasional transport and 1 destroyer, sometimes more.  But whether UK keeps a fleet or not, its my personal opinion that trying to defeat Germany via the Atlantic Wall/Liberation of France direction is impossibly fraught with disadvantages compared to what I laid out here.  You can of course attack Germany and this may save Moscow from inevitable defeat but then Japan stabs Moscow in the back with tanks built at its new India factory on turns 8+.

Try to get Iwo Jima then occupy SZ 6 if you can, but if not go to Queensland/Carolines and land on DEIs
Purchases should be subs & carriers?

The exact purchases are up to you, and depend on whether you’re at war or not.  A lot of people buy 3 CV on USA 1(48/52$) and I can’t really argue with that since you already the planes to fill them (or your buddies do) and whether you KGF or KJF the carriers help both ideas.    Carriers don’t add any fleet attack, however, whereas subs do and they also destroy $$.  By turn 8, the USA will need to have everything in some proportion (long range air, fleet beef, boots on the ground…all of it) its more a question of what order you build it in (carriers then subs then transports seems optimal against dave).

Shouldn’t the Siberians go west in this case?

That’s a super popular idea, but keeping the majority of those 20 pieces in the East;

A) prevents the Crussia strategy where all 3 Axis annihilate Russian income starting turn 1 so that preserves about $7/PT by turn 5
b) gives Japan some options regarding the Manchuria garrison, whereas you want to tie all that stuff up.

If the Russians kinda hang back from the coast, by Japan 5 there will be some opening where all the Russians can join up in Amur without the risk of getting blasted.  From that point, if the other 4 powers are annoying Japan enough, you can take over Korea and Manchuria (keeping in mind that the Mongolians are lost).  If you played China well or saved any of its $ or troops, you can do 1 gigantic buy of units in the backfield (since China can play anywhere) then Japan can never get those lands back.  Plus its all usually dead in China by that point.

How can I force japan into a large-scale battle?

Great question, you can’t really force him to do anything, but at some point, his only option left is to flee the Pacific board and head to Africa.  He will likely have something like 2 BB 3 CV 2 CA 4-8 DD 2-4 SUB plus an amazing amount of air power that can hit you once you are close to the Mainland, but your fleet will be even more powerful than that with something like 6 CV, 12 planes, 1 BB 2 CA and 20+ dds and subs.

Japan is going to be slobbering waiting for his chance to attack you at equal odds, so all of his ships need to be able to reach the same zone.  If he blows that setup, you can defeat his fleet in smaller parts.  Sometimes, you can even block the ability of part of the fleet to reach the key zone (by sticking blockers in SZ 20-23) which is also a total stymy and he has to call off the attack.

Even if he does attack you and wins, you can still eliminate what’s left and If you’ve ever succeeded in stripping off Japan’s Grand Fleets, you’ll see he’s totally paralyzed because he can’t drop enough stuff at one factory or naval base to start over.  He especially can’t do that when he’s powering 2-3 factories on the mainland.

That’s what you’re doing here is you’re splitting his efforts.  Japan unmolested will build 1 factory per turn, then power those with 3 tanks per turn.  The only way he can do that is if he spends zilch on the water while you’re dropping 70 PER TURN.

At some point, he either has to build in naval parity with you to try and stand off your fleet, or try and grab the money and roll over UPAC, CHINA, PERSIA, IRAQ, and then EGYPT and Russias last income by sending in an endless shower of newly built tanks.    He only gets to do one of those two things, however.  When you see him buying things other than tanks, its because he can’t fill the factories and build ships (until he has like 70-80$, and if he’s uncontested in that, you lose).

3 x $12 x $12 is a lot of cash.  12 + 24 + 36 and so forth, because its building a new factory each turn.  But your point is well taken–Japan can build a variety of stuff and ploddingly go after Bombay.  What I’m trying to evoke is that if he builds the 3 factories (or even 2) he will find himself at a point where he has to buy cheap stuff rather than the best, which slows him down and is defensive.

I suppose that’s what I mean about “making him” attack you.  He has to do it before you grow overwhelming, but after his ships have met their objectives.  If the Japan ships pass SZ 37, they can’t come back in time to rescue the homeland and so they’re out of the picture.  If they sit in SZ 37, he can’t give the deathblow to India.  If they sit in SZ 6, they can’t really do anything but protect transports.

Japan has had as many as 6! carriers at that point, but if he has that many, its pulling planes off the mainland so again, he cannot deliver the killing blow to India.  Perhaps I shouldn’t have tried to enumerate all the stuff in each fleet, they are usually very close to equal in terms of total hits and if I have an advantage of at least 4 total hits (with either Japan or USA) I typically attack.

Once he’s got india, the tanks just flow.    Since its pretty hard to stop him from taking India without using the ANZAC planes (when they could be with the USA fleet), the better way is to make him think twice about “turning his back to the US” by attacking India.

If he accomplishes all this stuff (blast china, take spice, annhiliate India) then he’s about to win the game.  But to do it, and quickly, he has to turn away from USA with critical units (usually 2CV 1 BB 1 CA 1 DD and most of his planes and transports).

Japan needs the Air units to be on Kwangsi in order to attack India, but any of these air units cannot reach further than SZ 6/SZ 33 (even with the airbase and empty carriers) and this is out of range to hit a lot of good meeting up spots for the USA.

Short Version;  Japan is always running his game plan (no matter what turn he DoWs), focused on his objectives–there needs to be a moment where you force him to either

#1 stick to the script and lose control of SZ 6 or
#2 abandon his original plan and react to your threat.

Agree with taamvan’s approach and thinking.  I only have had time to play limited table top versions with my group, but have come to the conclusion with the KJF strategy for the U.S. for the allies to hope to win.  But I don’t go 100% Pacific.  I bleed off destroyers as needed to sweep subs in the Atlantic for Brits so they can concentrate on land/air builds in mid-east to support Russia or India (i.e., YG’s middle earth), and a sub or two each round for the Med to convoy and take out any surface ships protecting transports if Axis goes that route.  If not, to eventually pile those in SZ97 and convoy Italy.

Pressure on Japan has to be applied simultaneously from all directions as they have such a large perimeter to protect (not the case for Germany).  If not, then they can rotate the air force (and fleet) in sectors to clean up, then move on after secured.  First focus on China then to take India and eliminate UK Pac.  Once those are secured along with spice, they are earning 80+ with NO’s, and the force can then pivot back to go east or SE.  By the time U.S. pivots back in later rounds to Pacific after helping to bottle up Germany, Japan is too massive.

By U.S. applying pressure early with fleet/air builds, along with minors (ANZAC, UK PAC, Russia, China), Japan is forced to either split their concentrated force, or be exposed in one of the sectors.  That includes keeping Russian force in full in waiting at Buryatia, to pin Japan land forces there or allow Russians to advance to Manchuria.  Also, much of the Japan income is open to convoy, so lots of subs to be built between U.S. and ANZAC.  If Japan counters with destroyer builds, that helps mainland Allied forces.  And if China is able to build artillery with regularity, say goodbye to China for Japan and its income loss.

Also, initial fleet builds are in Atlantic as contingency against Sea Lion.  But after R2 (maybe R3 depending), then move fleet through Panama over to Pac once Sea Lion threat is past.  Yes, Germany will probably take down Russia with no pressure in W. Eur.  Then the race is Egypt.  By then, Japan should be contained to a level where U.S. can go 100% Eur.

Knowing focus is Pac for U.S., I concentrate any bids to Eur, save one Inf for ANZAC for DNG NO.  If bid is sufficient, to pull off both Taranto and Tobruk to allow Brits to secure Africa and relegate Italy to be nothing more than Eur mainland can openers.  Brits can then focus on mid-east builds while completing Africa cleanup and securing that income.

US should not go 100% pacific.

At minimum US needs to do a few things to help out uk.

1. Clear German subs from atlantic.
2. Land in Gibraltar / Morocco to knock out italian NOs.
3. Provide an aircraft carrier or something to help control french coast.

Without help uk will really struggle. Effectively giving germany italy an easy job to ward off uk ships and concentrate on blitzing russia.